Former U.S. Rep. Gabrielle Giffords and her husband wrote in an op-ed published in USA Today that their Americans for Responsible Solutions initiative would help raise money to support greater gun control efforts.

NEW YORK (CBSNewYork/AP) — Rep. Gabrielle Giffords of Arizona was shot in the head Saturday. An aide was among six people killed and 18 others wounded when an assailant opened fire outside a grocery store […]